Incorporating the new generation of HTC polarizing foils, the B+W 46mm Kaesemann High Transmission Circular Polarizer MRC Filter helps to decrease reflections and glares. The filter uses Kaesemann HTC polarizing foils having high translucency and 99.5% light transmission. These foils are positioned between high-grade, plano-parallel optical glass and then precision-polished to get a precise plano-parallel surface, which is essential for capturing excellent images using a telephoto or apochromatic lens. The filter also includes a multi-resistant coating that protects it from humidity and dirt. The 46mm filter features an F-Pro brass ring to increase durability and prevent jamming as it does not bind to the aluminum housing of the lens.